fix InfluenceVolume creation

com.unity.render-pipelines.high-definition/HDRP/Lighting/Reflection/HDProbe.cs

         
         void Awake()
         {
-            influenceVolume = new InfluenceVolume(this);
+            if (influenceVolume == null)
+                influenceVolume = new InfluenceVolume(this);
+            else
+                influenceVolume.Init(this);
         }
 
         void ISerializationCallbackReceiver.OnBeforeSerialize()